MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 5bf621e8d7c8590e3a2a5bb9779b5458b28f85b8887076b4a4885d1ee3e2c7f0. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry


QuasarRAT


Vendor detections: 12


Intelligence 12 IOCs YARA 2 File information Comments
Download sample Add tag Delete this sample Report a False Positive

SHA256 hash: 5bf621e8d7c8590e3a2a5bb9779b5458b28f85b8887076b4a4885d1ee3e2c7f0
SHA3-384 hash: 9304c93d45192e37e379885ff80d29de654ce7801c18c6656ba6482659f001222ce65c67f4936faeb2c7852b0f2ecad3
SHA1 hash: b7084427e4e3627129cbb52584f53e21204977ce
MD5 hash: 558b5dba7f6af4a415a511a06b1f4b73
humanhash: connecticut-batman-edward-happy
File name:2XyVNLp.bat
Download: download sample
Signature QuasarRAT
Create hunting rule
File size:702'940 bytes
First seen:2025-08-16 21:07:38 UTC
Last seen:Never
File type:Batch (bat) bat
MIME type:text/x-msdos-batch
ssdeep 12288:aIgQgprRve4BNCbdjs9TCKeFF8IIk8ZQMvyY9AwZ+OgL88RpagynDePvKZAMIL0o:jgQgr3BNCb1s9GRb1aQM6Y2nTyK3KO9f
Threatray 11 similar samples on MalwareBazaar
TLSH T12EE4234031933B79409C25DDFA4DB44B7A9ADDC4A044E6CEB9C61AA3D07EF5B90B318E
Magika txt
Reporter abuse_ch
Tags:bat QuasarRAT

Intelligence

File Origin
# of uploads :
1
# of downloads :
29
Origin country :
SE SE
Vendor Threat Intelligence
Malware family:
redline
Create hunting rule
ID:
1
File name:
a903ccd7cde59d64afe94efd2abb09179dd007c5e2e6828067d2b4c36a5cf67a.bin.exe
Verdict:
Malicious activity
Analysis date:
2025-08-16 18:17:01 UTC
Tags:
gcleaner loader lumma stealer auto autoit redline amadey inno installer botnet delphi telegram auto-reg themida
Link:
https://app.any.run/tasks/8341c28b-d4f1-4272-ad82-5356bcad24e8

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Link:
https://www.capesandbox.com/analysis/21715/
Verdict:
Malicious
Score:
92.5%
Link:
https://cyber-fortress.com/docs/result/index.php?id=68a0f35f8fd55a79c5281075
Tags:
vmdetect xtreme shell sage
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
anti-vm obfuscated
Link:
https://www.filescan.io/uploads/68a0f39ea4bdac9f5b99db24/reports/579fcadf-3ae1-45d3-8c1c-7ed47c016683/overview
Verdict:
Unknown
Link:
https://www.hybrid-analysis.com/sample/5bf621e8d7c8590e3a2a5bb9779b5458b28f85b8887076b4a4885d1ee3e2c7f0
Result
Threat name:
Quasar
Create hunting rule
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Link:
https://www.joesandbox.com/analysis/1758567
Signature
.NET source code contains potential unpacker
.NET source code references suspicious native API functions
Bypasses PowerShell execution policy
Contains functionality to disable the Task Manager (.Net Source)
Found malware configuration
Hides that the sample has been downloaded from the Internet (zone.identifier)
Installs a global keyboard hook
Joe Sandbox ML detected suspicious sample
Loading BitLocker PowerShell Module
Malicious sample detected (through community Yara rule)
Obfuscated command line found
Powershell drops PE file
Sample uses string decryption to hide its real strings
Sigma detected: Base64 Encoded PowerShell Command Detected
Sigma detected: Potential PowerShell Command Line Obfuscation
Sigma detected: PowerShell Base64 Encoded FromBase64String Cmdlet
Sigma detected: Suspicious PowerShell Parameter Substring
Suspicious command line found
Suspicious powershell command line found
Tries to detect sandboxes and other dynamic analysis tools (process name or module or function)
Uses schtasks.exe or at.exe to add and modify task schedules
Yara detected Quasar RAT
Behaviour
Behavior Graph:
Download SVG
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1758567 Sample: 2XyVNLp.bat Startdate: 16/08/2025 Architecture: WINDOWS Score: 100 47 i.ibb.co 2->47 63 Found malware configuration 2->63 65 Malicious sample detected (through community Yara rule) 2->65 67 Yara detected Quasar RAT 2->67 69 9 other signatures 2->69 10 cmd.exe 1 2->10         started        13 QK4JW0.exe 2->13         started        15 svchost.exe 1 1 2->15         started        signatures3 process4 dnsIp5 73 Suspicious powershell command line found 10->73 75 Obfuscated command line found 10->75 77 Uses schtasks.exe or at.exe to add and modify task schedules 10->77 18 conhost.exe 10->18         started        21 conhost.exe 10->21         started        23 conhost.exe 10->23         started        25 powershell.exe 7 13->25         started        53 127.0.0.1 unknown unknown 15->53 signatures6 process7 signatures8 55 Suspicious powershell command line found 18->55 57 Obfuscated command line found 18->57 27 powershell.exe 14 24 18->27         started        32 powershell.exe 33 21->32         started        59 Bypasses PowerShell execution policy 23->59 61 Suspicious command line found 25->61 34 cmd.exe 1 25->34         started        process9 dnsIp10 49 194.59.30.125, 39293 COMBAHTONcombahtonGmbHDE Germany 27->49 51 i.ibb.co 207.174.26.219, 443, 49681, 49686 RCN-ASUS United States 27->51 45 C:\ProgramData\QK4JW0.exe, PE32+ 27->45 dropped 79 Hides that the sample has been downloaded from the Internet (zone.identifier) 27->79 81 Installs a global keyboard hook 27->81 83 Loading BitLocker PowerShell Module 27->83 36 cmd.exe 1 27->36         started        85 Obfuscated command line found 32->85 87 Suspicious command line found 32->87 89 Powershell drops PE file 32->89 91 Suspicious powershell command line found 34->91 38 powershell.exe 15 34->38         started        file11 signatures12 process13 signatures14 41 conhost.exe 36->41         started        43 schtasks.exe 1 36->43         started        71 Tries to detect sandboxes and other dynamic analysis tools (process name or module or function) 38->71 process15
Score:
97%
Verdict:
Malware
File Type:
SCRIPT
Link:
https://malprob.io/report/5bf621e8d7c8590e3a2a5bb9779b5458b28f85b8887076b4a4885d1ee3e2c7f0
Detection:
n/a
Link:
https://mwdb.cert.pl/sample/5bf621e8d7c8590e3a2a5bb9779b5458b28f85b8887076b4a4885d1ee3e2c7f0/
Threat name:
Text.Trojan.Generic
Create hunting rule
Status:
Suspicious
First seen:
2025-08-16 16:41:28 UTC
File Type:
Text
AV detection:
4 of 24 (16.67%)
Threat level:
  5/5
Detection(s):
Suspicious file
Link:
https://check.spamhaus.org/check/?searchterm=lp3cd2gxzbmq4orklo4xpg2ulczi7bnyrbyhnnferbor5y7cy7ya._file
Verdict:
malicious
Label(s):
quasarrat
Create hunting rule
Similar samples:
183b9d83e2c77170c409c63dbf3206101cdecc97241c065786e6d9e1a43f3fdf
QuasarRAT
79e599cd5c7ddbde2fdd4d0b1b80a128e947262ec8a01857a091bd6440e8b86c
QuasarRAT
adace67ac0bbc2ed4ec55d4e47b9494acfb36bb45ee1fdaabcfbd41e4d815e96
QuasarRAT
afd0e22561d46e29fb1ebeff8c127bd14320446246332f5964024ed5f8ce7a14
QuasarRAT
c641f072a1ee18619a801239340c213136a5e9da02d9fcf159d98e3f2b1b2e1d
QuasarRAT
caccb982c0aba2888059ed48499af97f81364b02954c8ad2e4e95110dada6d49
QuasarRAT
d17f5a248883a81f2d0b01f801c62d60bdf5bda00c455f7823ffac056b4165c6
QuasarRAT
d7fbc316604b280b0faafe8eb5f42d9cd7a753052660d3c35493ad89bb3548a5
QuasarRAT
e579950762823d1c71bf6a0be2c76b46dc29d08b73c7c41f88777598bd8203f2
QuasarRAT
error
QuasarRAT
fa249561e1328ac4c46edd67df443fab8d9cb9f1df3fc2902b4668c1e15df907
QuasarRAT
+ 1 additional samples on MalwareBazaar
Result
Malware family:
quasar
Create hunting rule
Score:
  10/10
Tags:
family:quasar defense_evasion execution persistence spyware trojan
Link:
https://tria.ge/reports/250816-zzswcsgp3z/
Behaviour
Scheduled Task/Job: Scheduled Task
Suspicious behavior: AddClipboardFormatListener
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
Uses Task Scheduler COM API
Blocklisted process makes network request
Command and Scripting Interpreter: PowerShell
Modifies trusted root certificate store through registry
Quasar payload
Quasar RAT
Quasar family
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
Link:
https://yomi.yoroi.company/submissions/5bf621e8d7c8590e3a2a5bb9779b5458b28f85b8887076b4a4885d1ee3e2c7f0

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:botnet_plaintext_c2
Create hunting rule
Author:cip
Description:Attempts to match at least some of the strings used in some botnet variants which use plaintext communication protocols.
Rule name:vmdetect
Create hunting rule
Author:nex
Description:Possibly employs anti-virtualization techniques

File information

The table below shows additional information about this malware sample such as delivery method and external references.

Web download

QuasarRAT

Batch (bat) bat 5bf621e8d7c8590e3a2a5bb9779b5458b28f85b8887076b4a4885d1ee3e2c7f0

(this sample)

  
URLhaus
https://urlhaus.abuse.ch/url/3604845/
  
Delivery method
Distributed via web download
Cape
Cape
https://www.capesandbox.com/analysis/21715/
  
URLhaus
https://urlhaus.abuse.ch/url/3605335/

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